Paper-making machine.



' Patented Ian. l4, I902; c. E. BARRETT & J. E. HORNE.

- No. 69l,333.

PAPER MAKING MACHINE.

(Application and June 28, 1901.

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No. 69!,333. Patented Ian. l4, I902. C. E. BARRETT & J. E. HORNE.

PAPER MAKING MACHINE.

(Application filed. June 28, 1901.)

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'No. 69!,333. Patentd Jan. 14,1302. C..E. BARRETT & J. E. HORNE.

PAPER MAKING MACHINE.

(Application filed June 28, 1901.)

3 Sheets-Sheet 3.

(No Model.)

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UNITED STATES PATENT OFFICE.

CHARLES E. BARRETT AND JOHN E.

HORNE, OF LAWRENCE, MASSACHU- SETTS, ASSIGNORS TO THE J. H. HORNE &; SONS COMPANY, OF LAW- RENCE, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

PAPER-MAKING MACHINE.

SPECIFICATION forming part of Letters Patent No. 691,333, dated January 14, 1902.

Application filed June 28, 1901.

To all whom it may concern: I I Be it known that we, CHARLES E. BARRETT and JOHN E. HORNE, citizens of the United States, and residents of Lawrence, county of Essex, and State of Massachusetts, have invented an Improvement in Paper-Making Machines, of which the following description, in connection with the accompanying drawings, is a specification, like figures on the drawings representing like parts.

In Patent No. 634,228, dated October 3, 1899, to C. E. Barrett and J. H. Horne, is shown and described a Fourdrinier papermaking machine wherein the front end of the r 5 shake-frame is vertically adjustable in order that the inclination of the upper run of the making-wire may be varied to adapt the machine for pulp of different kinds or grades. In this patent, however, the adjusting devices for the shake-frame are situated underneath the front end thereof, and it isfound in practice that the constant moisture and dampness which always exists around the floor of this class of machines is injurious to the adjusting devices.

It is the object of our present invention to modify this type of machine by placing the adjusting devices for the shake-frame above the same and out of reach of any moisture or water that may flow over onto the floor.

A further object of ourinvention is to pro-- vide means for stifiening the shake-rails of the shake-frame, so that the upper run of the making-Wire may have a uniform inclination throughout the length of the shake-frame.

With these objects in View our invention comprises means for suspending the front end of the shake-frame from overhead supports, the said suspending devices having means situated above the shake-frame for vertically adj usting the same. The shakerails are stiffened by making the shake-frame in the form of a truss, as will be hereinafter described.

In the drawings, Figure 1 is a side elevation of the front portion of a Fourdrinier papermaking machine. Fig. 2 is the rear end of the shake-frame, the said Figs. 1 and 2 showing the shake-frame complete.

Fig. 3 is a Serial No. 66,324. (No model.)

sectional view, and Fig; 4 is a detail of the adjusting mechanism.

The shake-rails 3 of the shake-frame, the table-rolls 4, the Wire 5, the wire rolls 6, the breast-roll 7, the deckle-straps 8, the decklerolls 9, and the feed-box-lO may be and are of any usual construction, and inasmuch as their function is well known to those skilled in this art further description of them is not necessary.

The rear end of the shake-frame is pivotally supported in some suitable Way upon the fixed or couch-roll support 14, preferably by means of the bolts 15, which pass through the ends of the shake-rails and into the fixed sup: port 1%. The front end of the shake-frame, as stated above, is vertically adjustable, and

to allow of the shake-frau1e swinging about the support 14 as a fulcrum the apertures in the ends of the shake-rails through which the bolts 15 pass are made slightly tapering, as seen in Fig. 2.

It. is essential in this type of machines that the upper run of the making-wire shall be on a straight line in order that the inclination thereof may be uniform throughout the length of the shake-frame, and therefore, since the shake-frame is supported at its ends only, it

lower end of the breast-roll frame and to the rear end of the I-beams 18 are the lower cords 19 of the trussed shake-frame, suitable struts 20 being employed between the lower cords and the I-beam 18, said struts being connected to the cords and I-beams in any suitable way. Preferably the wire rolls 6 will be carried 9O suitable construction, and connected to the stead of being supported directly by the shakerail 3, as is customary.

As stated above, the front end of the shakeframe is suspended from an overhead support, and suitable mechanism abovethe said frame is provided for vertically adjusting the front end of the shake-frame. In this embodiment of our invention the overhead support comprises two posts or supports 30, situated at the front of the shake-frame and either side thereof, said supports preferably being hollow and each inclosing a suitable suspender3l, which is hungatits upper end from the supports 30 and at thelower end is connected toa suitable hook projection 32, attached to,

the breast-roll frame 16, the said posts or supports being provided on their sides adjacent the breastroll frame with an opening 33, into which the hook 32 projects, as seen in Fig. 1. Our invention contemplates some suitable device for simultaneously adjusting the suspenders in a vertical direction, whereby the breast-roll end of the shake-frame may be raised or lowered and yet maintained in a horizontal position. One suitable mechanism for thus simultaneously adjusting the suspenders is illustrated in the drawings,

, wherein in'Fig. 4 it will be seen that the upper ends of the posts 30 are provided with suitable caps 35, which rest upon the posts and have lips 36 extending into the same to thus hold the caps in position. The upper end of each cap piece 35 is provided with the central circular recess 38, in which rests the hub 39 of a worm-gear 40, the said worm-gear being thus supported for rotation about a vertical axis. A hanger in the form of a rod 41 passes vertically through the cappiece 35 and axially through the worm-gear 40, and said Worm-gear has a screw-threaded engagement with the hanger, as shown in Fig. 4. The hanger is provided with a suitable keyway 43, which engages a key 44 in the cappiece 35, whereby the said hanger is prevented from rotation, but can move vertically through the cap-piece. The lower end of the hanger hasthe forked portion 45, to which is pivotally hung the suspender 31, which may be either in the form of a rod or wire cable.

From the above description it will be seen that the suspenders 31 are supported from the upper ends of the posts 30 by means of the gear-wheel 40, and since the lower ends of the suspenders are connected to the breast-roll names frame 16 this construction affords means for supporting the front end of the shake-frame from a point above the same. By turning the worm-Wheels 40 the hangers 41 may be raised or lowered to raise or lower the front end of the shake-frame, as desired. In order to rotate the wormwheels 40 in unison, I provide the worm-shaft 50, which extends across the machine and is journaled in suitable boxes 51 at the upper ends of the posts 30, the said shaft having at the ends thereof the worms 54 and 55, which mesh with the worm-gears 40. The end of the shaft is preferably provided with the hand-wheel 56 for rotating the same. Preferably the worm 55 will be a left-hand worm, and the hanger 41, oooperatingtherewith, will have right-handed screw-threads, while the worm 54 will be a right-handed worm, and the screw-threads of the hanger 41, cooperating therewith, will be left-handed. This arrangement is preferable, because the lateral strain upon the upper ends of the posts 30, due to the turning of the worm-shaft 50, will be in opposite directions. The wormgears 40 will be provided withsuitable oil holes 60, wherebythe contacting surfaces between the hub of the said worm-gears and the cap-piece 35 may be lubricated.

From the above description it will be seen that the front end of the shake-frame is suspended from an overhead support,and the adjusting devices for giving to the said front end of the shake-frame. its vertical adjustment are entirely above the shake-frame and cannot therefore be injured by any moisture or water which overflows onto the floor. Moreover, since the suspenders 31 are comparatively long it' will be obvious that the lateral motion of the shake-frame will be in approximately a right line instead of on a curved line, as would be the case were thesuspenders short or were the shake-frame supported upon short pivotal supports.

O ur invention is not restricted to the precise arrangement herein shown, as the same may be modified and rearranged without departing from the spirit and scope of our invention as set forth in the appended claims.

Having fully described our invention, What we claim as new, and desire to secure by Letters Patent, is

1. In a papermaking machine, a shakeframe, a support situated above the shakeframe, a plurality of suspenders hung from the said support and secured to the shakeframe at its breast-roll end, and means to simultaneously adjust said suspenders vertically, said adjusting means being situated above the shake-frame.

2. In a paper-making machine, a shakeframe, a plurality of posts or supports at the breast-roll end thereof and extending above the frame, suspenders connected at their lower ends to the breast-roll end of the said shakeframe and at their upper ends to said supports, and means for simultaneously adjusting the suspenders in avertical direction.

3. In a paper-making machine, a shakeframe, a post or support at each side of said shake-frame and at the breast-roll end thereof, said posts extending above the frame, a suspender hung from the top of each of said posts, said suspenders being connected at the lower ends to the shake-frame, and means for simultaneously raising or lowering said suspenders.

4. In a paper-making machine, a shakeframe, a making-wire thereon, hollow posts at the breast-roll end of said shake-frame and extending above the same, suspenders hung from the top of said posts and inclosed therein, said suspenders being connected at their lower ends to the shake-frame, and means to simultaneously raise or lower the suspenders.

5. In a paper-making machine, a shakeframe, a making-wire thereon, hollow posts at the front end of said shake-frame and extending above the same, suspenders hung from the top of said posts and inclosed therein, and connected at their lower ends to the shake-frame.

6. In a papermaking machine, a shakeframe, hollow supports at the front end thereof, suspenders inclosed in said supports and connected to the shake-frame at their lower ends, and means to adjustablyhang said suspenders from the supports above the shakeframe. I

7. In a paper-making machine, a shakeframe, hollow posts at the front end thereof, suspenders inclosed in said posts, said suspenders being connected at their lower end to the front end of the shake-frame, a wormgear at the upper end of each post, said gears having a screw-threaded engagement with the suspenders, and means to turn said gears in unison whereby the front end of the shakeframe may be vertically adjusted.

8. In a paper-making machine, a shakeframe, a fixed support for the rear end thereof, hollow posts at the front thereof, a wormwheel supported on each of said posts to turn about a vertical axis, a hanger passing axially through each of said worm-wheels and having a screw-threaded engagement therewith, a worm meshing with said worm-wheels and operating to turn the same in unison, and suspenders pivotally connected at their upper ends to said hangers and at their lower ends to the shake-frame.

9. In a paper-making machine, a shakeframe, having longitudinally-extended beams forming stiffening members, shake-rails separate from the said beams and supported thereon, lower cords stretching the length of the shake -frame, and struts between said lower cords and beams.

10. In a paper-making machine, a shakeframe, having longitudinallyextending I- beams on either side thereof, shake-rails on said I-beams, a breast-rollframe at the front end of the shake-rails, and to which the shakerails are connected, lower cords connecting the lower end of said breast-roll frame and the rear end of the I-beam, struts between the I-beams and lower cords, whereby the shakeframe is trussed, and means to suspend the front end of said shake-frame from an overhead support for vertical adjustment.

11. In a paper-making machine, a trussed shake-framehavinglongitudinally-extending I-bearns, shake-rails supported thereon, lower cords connected at their end to' the ends of the shakerails, struts between said lower cords and I-beams, means to suspend the front end of the shake-frame from an overhead support, and a stationary save-all independent from said shake-frame.

12. In a paper-making machine, a shakeframe pivotally supported at its rear end on a fixed support, overhead supports for the front end of said shake-frame, and means to suspend said front end from said supports, said shake-frame comprising longitudinallyextending I-beams, shake-rails thereon, lower cords connecting the ends of the shake-rails, and struts between said lower cords and I- beams.

13. In a paper-making machine, a trussed shake-frame comprising in its structure longitudinally-extending stifiening members on either side thereof, andshake-rails supported on said stiffening members, said shakerails being separate from but rigidly secured to the stiffening members.

14. In a paper-making machine, a trussed shake-frame, comprising in its structure 1ongitudinally-extendin g stiffening members on either side thereof, shake-rails supported on said stiffening members, said shake-rails being separate from but rigidly secured to the stiffening members, and brackets carried by the stiffening members for supporting the table-rolls.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

CHARLES E. BARRETT. JOHN E. HORNE.

Witnesses:

GEO. M. LITTLEFIELD, CALEB SAUNDERS. 

